GE 100W Rough Service Saf-T-Gard Light Bulbs feature a protective Teflon coating that helps contain glass fragments if broken. Designed with heavy-duty, all-weather construction, these bulbs protect against shattering, rain breakage and splatter from oil and lubricants. GE saf-t-gard bulbs are perfect for home use in kitchens, basements garages, workshops and enclosed exterior fixtures.Features Each bulb costs $12.05 annually to operate based on 3 hours per day use/$0.11 per kWh Rated to last 0.9 years Specifications Incandescent Type: A21 Watts: 100W